Apparatus for drilling parts of machinery with aid of drilling plates or bushes.



'Patented Hay 29, |900.`

E. CAPITAINE.

APPARATUS FOR DRILLING PARTS 0F MACHINERY WITH AID 0F DRILLIHG PLATES 0 H B U S H ES .(Applicac'ion .med occ. 2s, 1898.)

2 Sheets-Sheet I'.

(No Model.)

INVENTOR.'

ATTO RN EY Tm: comms #crews ca. Pncmmurnov, wAsumaToN. n. c.'

Nm 650,552. Patented May 29,|9D0.

E. CAPITAINE. APPARATUS FOR DRILLING PARTS 0F MACHINERY WITH MD 0F DRILLING PLATES 0R BUSHES.

(Appuwion med oct. 2s, 189s.)

Fay. 2. if

n j@ nl nu o (No Model.)

2 Sheets-Sheet 2 INVENTOR l @ww M MMM,

ATTORNEY PATENT amen.

MII. CAPITAINE, OF FRANKFORFON-THE-MAN, JIRMANY.

APPARATUS TOR DRILLING PARTS OF MACHINERY WITH AID OF DRILLING PLATES 0R BUSHES.

SPECIFICATION forming part of Letters Patent No. 650,552, dated May 29, 1900. Application filed ctolaer 28,1898. Serial No. 694,781. (No model.)

To @ZZ 107mm, it may concern:

Be it known that I, EMIL CAPITAINE, civil engineer, a subject of the Emperor of Germany, and a resident of 5 Gutzkowstrasse, Frankiort-on-the-Main, German Empire, have invented certain new and useful Improvements in Apparatus ior Drilling Parts of Machinery with the Aid of Drilling Plates or Bushes, of which the following is a specification.

My invention refers to apparatus for drilling holes in heavy parts of machinery in the desired relative positions by the use of socalled drilling-plates and it consists,essentially,inim proved means for removably securing a portable drill t the drill-plate and for properly guiding the drill.

llIy invention will be best understood by reference to the annexed drawings, in which- Figure l is a vertical section, partly in elevation, illustrating several forms of carrying out my invention, marked I, II,III, IV, and V on said Fig. l. Fig. 2 is a separate sectional view, partly in elevation, of the modiication III, Fig. l, with a drill for enlarging the hole made by the drill shown in Fig. l. Fig. 3 is a detail view of a modification for drilling oblique holes. Y Fig. 4. is a plan view, and Fig. 5 a cross-section, of an arrangement for moving the locking-lever over a number of holes.

Similar letters and numerals of reference designate eorrespondin g parts throughout the several views of the drawings.

Referring now to the arrangement I of Fig. l, the letter A designates the object or part of machinery to be drilled, which is fixed within the drilling-box B. C is a drilling device consisting of a'easing s, within which a longitudinally-adjustable rotatable spindle I is guided. Rotary motion is imparted to the spindle I in the usual manner, either by a hand-wheel or by a flexible shaft connected by suitable gear. :n is a flange secured to the lower end of the casing s by suitable means, such as the upper tubular projection q, screwed into the casing. The flange serves as a guide for the drill-holder and has a lower annular projection s tting a hollow steel plate p, which is secured to the drilling-box by suit-able means, such as its lower annular projection m, engaging a hole l in the drilling-box, whereby the drill is brought in line with the hole to be drilled. The clamping device for-pressing and holding the flange a; against the plate p or against the drillingbox consists, essentially, of a lever y, surrounding the lower part of the casing s and bearing upon a ring r, loosely mounted upon the ange :c of the casing s, said lever y being pivoted at one end by engaging a fulerumpiece o, secured to the box, and screwed down at the other end by a screw w on a pivoted link lo. b is a bushing secured in the drilling-box for guiding the lower end of the drill M. In the example shown the drill cannot conveniently be fixed to the spindle I, but to a prolongation or drill-holder M', while the lower end of the drill M is guided in the bush b.

Inthe modification II, Fig. l, the bushing b is arranged within a tubular arm B2, projecting downward from the drilling-box, and said bushing is made in one piece with the plate p, the connection being made by segmental parts p.

In the modification III, Fig. l, the plate 19 is made in one piece with the fulcrum-piece n and bolted to the drilling-box. The bushing b is placed within the lower annular projection ,e of the flange as. The same arrangement is shown in Fig. 2, with the exception that the drill is changed to one with a bit F .for enlarging the hole made by the drill in III, Fig. 1, andthat the bushing b is omitted, since the hole previously made serves as a guide.

Modification IV, Fig. 1, shows substantially the same arrangement as III, Fig. 1, the lever y, surrounding the lower end of the casing s, being shown in section, and the plate p, with its downward projection, serving as a guide for the drill and performing the function of the bush b.

The modification V, Fig. l, shows pivoted lever y, engaging circular fulcrum-pieces i), arranged to hold the drill over holes 1 2 3 in plates p. Y

Fig. 3 shows a modification of the apparatus for drilling oblique holes in which the plate p3, (corresponding to the plate p of modification I, Fig. 1,) with its hollow projection, lits the perforation of the drill-box and of IOO the foot-plate of the fulcrum-piece o, attached to the drill-box, the hole in plate p8 having the required inclination and the upper face of the plate, upon which the flangq rests, being at right angles to the said hole. The bushing b is placed into the lower end of the plate p3.

Figs. 4 and 5 show a modified form of the fulcrum-piece o and of the abutment w for securing the drill successively over a series of holes to be drilled. The lever -v engages with one end beneath the ledge-fulcrum n4, while the other end passes beneath the abutment 104, and the screw 7a4 passes through the correspondingly-threaded end of the lever and acts against the abutment wf. n is a handwlieel for turning the screw h4. All of' the above-described modifications have a drilling-box B secured to the piece of machinery A; a portable drilling device C -within a casing s, forming a guide for the spindle, drill-holder, or drill, said casing provided with a flange having a hollow projection z fitting a corresponding perforation -o the drilling-box B or part secured thereto, such as the steel plate p, so as to bring the drill in line with the boleto be bored, and a clamping device for removably holding said flange against the drilling-box or part secured thereto, a press-rin g fr being interposed between the clam ping-lever and the flange Some ofthe modifications havea guide-bush b for the drill attached to the drilling-box B or part secured thereto, such as the hollow projection of the plate p. The clamping device used Vby preference is a lever y, through which the casing s passes, a fulcrum-piece 7c or 7a4, and a screw w or 'L04 for forcing the lever against the ring a over the flange thereby holding the drilling device in its proper place central to the hole to be bored.

That I claim 'as new isl. rThe combination of a drilling-box secured to the piece of machinery to be drilled; a portable drilling device, the casing of which is provided with a guide for the drill or its hold'er, and with a fiange at its lower end havingra hollow projection tting a perforation of the drill-box 'or part secured thereto, so as to bring the drill in line with the hole to be bored; and a clamping device for removably holding said fiange against the drill-box or intermediate part, substantially as and for the purpose specified.

2. The combination of a drilling-box secured to the piece of machinery to be drilled;

a portable drilling device, the casing of which is provided with a guide for the 'drill or its l1-older, and with a flange at its lower end havingl a hollow projection fittingl a perforation of the drill-box or part secured thereto, so as to bring the drill in line with the hole to ,be drilled; a clamping device for removably holding said fian ge against the drill-box or intermediate part; and a guide-bush for the drill in the drilling-box or part secured thereto, substantially as and for the purpose specified.

3. The combination of a drilling-box secured tothe piece of machinery to be drilled; a portable drilling device, the casing of which is provided with a guide for the drill or its holder, and with a flange at its lower end having a hollow projection fitting a perforation of the drill-box or part secured thereto, so as to bring the drill in line with the hole to be bored; a lever bearing upon a loose ring on the lower end of the casi-ng and :resting upon the flange; said lever removably pivoted at one end by engaging a fulcrum-piece secured to the drilling-box and screwed down at the other end by a set-screw interposed between the lever and an abutment-piece connected to the drilling-box, substantially as and for the purpose specified.

4. The combination of a drilling-box secured to the piece of machinery to be drilled; a portable drilling device, the casing s of which is provided with a guide for the drill or its holder, and with a fiange :r at its lower end having a hollow projection z engaging a perforation of a plate p secured to the drilling-box by suitable means, such as an annular projection m engaging a perforation Z of the drilling-box; a ring r encompassing the lower end vof the casing s and resting upon the iiange fr; and a clamping device for holding and pressing the ring r against the flange 0c, whereby the drilling device is held against the drilling-box and the drill guided in line with the hole to be drilled, substantially' as specified.

5. The combination of a drillingrbox secured to the piece of machinery to be drilled; a portable drilling device, the casings of which is provided with a guide for the drill or its holder, and with a flange at its lower end having a hollow projection .e engaging a perforation of a plate p secured to the drilling-box by suitable means, such as an annular projection m engaging a perforation Z of the drilling-box; a ring r encompassing the lower end of the casing s and resting upon.

the flange fr; and a clamping device consisting of a fulcru m-piece and an abutment-piece secured to the drilling-box, a lever y, one end of which engages the fulcrum-piece, and a screw interposed between the abutment-piece and the other end of the lever, for pressing the lever against the ring vr,whereby the drilling device is held against the drilling-plate and the drill adjusted in line with the hole to be drilled, substantially as specified.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses, this Sist day of August, 1898.

EMIL CAPITAINE.

lVitnesses:

JEAN GRUND, FRANK II'. MASON.

IOO

IIO 

